CN204243320U - Electric connector and metal shell thereof - Google Patents
Electric connector and metal shell thereof Download PDFInfo
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- CN204243320U CN204243320U CN201420676059.8U CN201420676059U CN204243320U CN 204243320 U CN204243320 U CN 204243320U CN 201420676059 U CN201420676059 U CN 201420676059U CN 204243320 U CN204243320 U CN 204243320U
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- coating
- metal shell
- leg
- main body
- electric connector
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Abstract
The utility model discloses a kind of electric connector and metal shell thereof, described electric connector is fixed on a circuit board, it is characterized in that, comprising: a terminal module; One metal shell, coated described terminal module, at least one leg that described metal shell has a main body and extends to form from described main body, described leg is in order to be fixedly welded on described circuit board; Described metal shell is provided with the first coating, the second coating and the 3rd coating successively, described first coating and described 3rd coating covers whole metal shell and described first coating is positioned at outermost layer, the coated described leg of described second coating also extends to described main body, and the second thickness of coating on described leg is greater than the second thickness of coating in described main body, described first coating is a kind of colored materials, and described second coating has good welding performance.This electric connector entirety can present the color of the first coating and have good welding performance.
Description
Technical field
The utility model relates to a kind of electric connector and metal shell thereof, and espespecially a kind of outer surface is coated with electric connector and the metal shell thereof of one deck colored materials.
Background technology
Nowadays, the appearance requirement of people to electronic product is more and more higher, in order to the solid colour of the color and electronic product that make electric connector, usually can plate one deck colored materials on the metal shell of electric connector, be generally black nickel, but the conjugation of black nickel and scolding tin is not good, therefore generally can take measures, ensure the welding performance of metal shell, on the metal shell of electric connector carrying out surface coarsening, conductive metal layer is formed as disclosed it in Chinese patent CN201210349450.2, and shielding layer is formed on the leg place conductive metal layer of metal shell, then colored electro-conductive layer (black nickel) is formed on metal shell.Finally, remove shielding layer and the colored electro-conductive layer on shielding layer (black nickel) from leg and expose the conductive metal layer of position on leg.
Although the not good problem brought of the conjugation solving black nickel and scolding tin like this, finally need again the shielding layer on pin and the colored electro-conductive layer on shielding layer (black nickel) to remove and easily expose conductive metal layer, cause waste, and technique is loaded down with trivial details.
Therefore, be necessary to design and be a kind ofly convenient to produce and there is electric connector and the metal shell thereof of good welds performance, to solve the problem.
Summary of the invention
For background technology institute problems faced, the purpose of this utility model is to provide a kind of electric connector and the metal shell thereof with good welds performance.
For achieving the above object, the utility model adopts following technological means:
A kind of electric connector, is fixed on a circuit board, it is characterized in that, comprising: a terminal module; One metal shell, coated described terminal module, at least one leg that described metal shell has a main body and extends to form from described main body, described leg is in order to be fixedly welded on described circuit board; Described metal shell is provided with the first coating, the second coating and the 3rd coating successively, described first coating and described 3rd coating cover whole described metal shell and described first coating is positioned at outermost layer, the coated described leg of described second coating also extends to described main body, and the second thickness of coating on described leg is greater than the second thickness of coating in described main body, described first coating is different materials from described second coating.
Further, the coated described leg of described second coating extend to whole described main body.
Further, the coated described leg of described second coating extend to the described main body of part.
Further, the material of described 3rd coating is nickel, is directly attached to described metal housing surface, belongs to innermost layer.
Further, the material of described second coating is tin or gold.
Further, described second coating comprises the first tin layers and the second tin layers, and described first tin layers is coated described leg only, and described second coating covers described leg and extends to described main body.
Further, the material of described first coating is black nickel or black titanium.
A kind of metal shell, is characterized in that, comprising: a main body; At least one leg, extends to form from described main body; Have one first coating outside described metal shell, described first coating covers whole described metal shell; Also there is one second coating between described metal shell and described first coating, the coated described leg of described second coating also extends to described main body, and the second thickness of coating on described leg is greater than the second thickness of coating in described main body, the welding performance of described second coating is better than described first coating.
Further, the material of described second coating is tin or gold.
Further, the material of described first coating is black nickel or black titanium.
Compared with prior art, electric connector of the present utility model and metal shell thereof are while guarantee welding performance, decrease the operation of the colored electro-conductive layer (black nickel) removed on shielding layer and shielding layer, save material, and final metal shell entirety presents black, makes electric connector seem more attractive in appearance.
[accompanying drawing explanation]
Fig. 1 is the three-dimensional exploded view of the utility model first embodiment electric connector and metal shell thereof;
Fig. 2 is the section plan of the utility model first embodiment electric connector and metal shell thereof;
Fig. 3 is the enlarged drawing at leg place in Fig. 2;
Fig. 4 is the section plan of the utility model second embodiment electric connector and metal shell thereof;
Fig. 5 is the enlarged drawing at leg place in Fig. 4;
Fig. 6 is the section plan of the utility model the 3rd embodiment electric connector and metal shell thereof.
The drawing reference numeral of embodiment illustrates:
| Electric connector 100 | |||
| Metal shell 1 | Main body 10 | Leg 101 | |
| First coating 11 | Second coating 12 | First tin layers 121 | Second tin layers 122 |
| 3rd coating 13 | |||
| Terminal module 2 | Terminal 21 | Insulating body 22 |
[embodiment]
For ease of better understanding the purpose of this utility model, structure, feature and effect etc., existing the utility model is described in further detail with embodiment by reference to the accompanying drawings.
As Fig. 1, electric connector 100 comprises metal shell 1 and a Terminals Die group 2 in a first embodiment, the coated described terminal module 2 of described metal shell 1.
Described terminal module 2 comprises multiple terminal 21 and an insulating body 22, and described insulating body 22 is fixed in multiple described terminal 21 assembling.
Described metal shell 1 has a main body 10, and from least one leg 101 that described main body 10 extends to form, described electric connector 100 is fixed to a circuit board (not shown) by the mode of soldering by described leg 101.
As Fig. 2 and Fig. 3, in order to described electric connector 100 has more good-looking outward appearance, often in described metal shell 1 plated surface last layer colored materials, described electric connector 100 is had identical with the color of electronic product.Described metal shell 1 has the first coating 11, second coating 12, the 3rd coating 13 successively in the present embodiment, being positioned at outer field is the first coating 11, i.e. chromonic layer, the coated whole metal shell 1 of described first coating 11, makes metal shell 1 entirety all present a certain color.In the present embodiment, black is presented in order to make whole metal shell 1, the material of described first coating 11 is black nickel, it can certainly be the black material such as black titanium or ruthenium, described first coating 11 can also select any colored materials as required in other embodiments, such as when metal shell 1 required color is silver color, the material of described first coating 11 can be rhodium or palladium, when metal shell 1 required color is yellow, the material of described first coating 11 can be electrum, when metal shell 1 required color is pink, the material of described first coating 11 can be gold copper, described first coating 11 adopts the mode of immersion plating to be formed.
Described 3rd coating 13 is positioned at the inside of described metal shell 1, and the material of described 3rd coating 13 is nickel in the present embodiment, and it covers whole metal shell 1, and object is the Corrosion Protection in order to improve described metal shell 1.Described 3rd coating 13 impacts nickel (not shown) by one deck and one deck bright nickel (not shown) forms; described impact nickel is close to described metal shell 1 surface; because the rusty stain on described metal shell 1 surface can drop when impacting nickel described in preplating; so the corrosion occurred from inside after preventing described metal shell 1 all to electroplate; described bright nickel is positioned at described impact nickel surface, strengthens protection further.Described impact nickel and described bright nickel all adopt the mode of immersion plating to be formed.
Due to described first coating 11, namely the welding performance of chromonic layer is generally poor, so also there is one second coating 12 between described first coating 11 and described 3rd coating 13, the material welding performance of described second coating 12 is better than the material of described first coating 11, the material of described second coating 12 is tin in the present embodiment, certainly the material of described second coating 12 also can be gold in other embodiments, described second coating 12 covers whole metal shell 1, and the second coating 12 thickness on described leg 101 is greater than the second coating 12 thickness in described main body 10.Described second coating 12 comprises the first tin layers 121 and the second tin layers 122, described first tin layers 121 only coated described leg 101, formed by the mode of brush plating, described second tin layers 122 covers whole described metal shell 1, formed by the mode of immersion plating, when compensate for leg 101 place's brush plating first tin layers 121 like this, minority leg 101 leaks the failure welding brushed and may cause.When described electric connector 100 is soldered to a circuit board (not shown), the tin at leg 101 place of described metal shell 1 and black nickel, by thermal interaction, make the tin at leg 101 place can contact with the tin on circuit board, thus reach stable welding effect.
So, metal shell 1 surface integral of described electric connector 100 covers the black nickel of one deck, whole metal shell 1 is made all to present black, black is presented relative to main body 10 part of metal shell 1, it is more beautiful that leg 101 part presents other color, and do not need to adopt unnecessary technique to remove the black nickel of leg 101 part, makes production technology simpler, decrease waste simultaneously, save material.
As Fig. 3 and Fig. 4, in a second embodiment, described second tin layers 122 covers described leg 101, but only extend to the described main body 10 of part, a part for described metal shell 1 can not be covered by described second tin layers 122, while guarantee leg 101 place welding performance, further decrease material requested.
As Fig. 5 and Fig. 6, in the third embodiment, described metal shell 1 is made up of the good copper punching press of anticorrosion effect, like this, just can remove the 3rd coating 13, make metal shell 1 only have the first coating 11 and the second coating 12, the corrosion resistance of metal shell 1 can be ensured equally, and decrease technique, save material.
Second embodiment and the 3rd embodiment can reach the beneficial effect identical with the first embodiment, do not repeat them here.
In sum, the utility model electric connector and metal shell thereof have following beneficial effect:
(1) electric connector of the present utility model and metal shell thereof are while guarantee welding performance, and overall appearance comprises leg 101 and all presents black, makes electric connector seem more attractive in appearance.
(2) do not need to adopt unnecessary technique to remove the black nickel of leg 101 part, make production technology more simple, decrease waste simultaneously, save material.
(3) through immersion plating second tin layers 122, when compensate for leg 101 place's brush plating first tin layers 121, minority leg 101 leaks the failure welding brushed and may cause.
Upper detailed description is only the explanation of the preferred embodiment of the utility model, non-ly therefore limits to the scope of the claims of the present utility model, so the equivalence techniques change that all this creation of utilization specifications and diagramatic content are done, is all contained in the scope of the claims of the present utility model.
Claims (10)
1. an electric connector, is fixed on a circuit board, it is characterized in that, comprising:
One terminal module;
One metal shell, coated described terminal module, at least one leg that described metal shell has a main body and extends to form from described main body, described leg is in order to be fixedly welded on described circuit board;
Described metal shell is provided with the first coating, the second coating and the 3rd coating successively, described first coating and described 3rd coating cover whole described metal shell and described first coating is positioned at outermost layer, the coated described leg of described second coating also extends to described main body, the second thickness of coating on described leg is greater than the second thickness of coating in described main body, and described first coating is different materials from described second coating.
2. electric connector as claimed in claim 1, is characterized in that: the coated described leg of described second coating also extends to whole described main body.
3. electric connector as claimed in claim 1, is characterized in that: the coated described leg of described second coating also extends to the described main body of part.
4. electric connector as claimed in claim 1, is characterized in that: the material of described 3rd coating is nickel, is directly attached to described metal housing surface, belongs to innermost layer.
5. electric connector as claimed in claim 1, is characterized in that: the material of described second coating is tin or gold.
6. electric connector as claimed in claim 5, it is characterized in that: described second coating comprises the first tin layers and the second tin layers, described first tin layers is coated described leg only, and described second coating covers described leg and extends to described main body.
7. electric connector as claimed in claim 1, is characterized in that: the material of described first coating is black nickel or black titanium.
8. a metal shell, is characterized in that, comprising:
One main body;
At least one leg, extends to form from described main body;
Have one first coating outside described metal shell, described first coating covers whole described metal shell;
Also there is one second coating between described metal shell and described first coating, the coated described leg of described second coating also extends to described main body, and the second thickness of coating on described leg is greater than the second thickness of coating in described main body, the welding performance of described second coating is better than described first coating.
9. electric connector as claimed in claim 8, is characterized in that: the material of described second coating is tin or gold.
10. electric connector as claimed in claim 8, is characterized in that: the material of described first coating is black nickel or black titanium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420676059.8U CN204243320U (en) | 2014-11-13 | 2014-11-13 | Electric connector and metal shell thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420676059.8U CN204243320U (en) | 2014-11-13 | 2014-11-13 | Electric connector and metal shell thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204243320U true CN204243320U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420676059.8U Active CN204243320U (en) | 2014-11-13 | 2014-11-13 | Electric connector and metal shell thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204243320U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020136017A (en) * | 2019-02-18 | 2020-08-31 | 大和電機工業株式会社 | Electrical connection member and solid-state device |
-
2014
- 2014-11-13 CN CN201420676059.8U patent/CN204243320U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020136017A (en) * | 2019-02-18 | 2020-08-31 | 大和電機工業株式会社 | Electrical connection member and solid-state device |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |